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A typical SIM card (mini-SIM with micro-SIM cutout) A SIM card or SIM (Subscriber Identity Module) is an integrated circuit (IC) intended to securely store an international mobile subscriber identity (IMSI) number and its related key, which are used to identify and authenticate subscribers on mobile telephone devices (such as mobile phones and laptops).
KDDI's au IC-Card Sierra Wireless AirCard 555R PC Card wireless modem for the China Unicom network with R-UIM interface (extension at the front). Removable User Identity Module (R-UIM, usually pronounced as "R-yuim") is a card developed for cdmaOne/CDMA2000 ("CDMA") handsets that extends the GSM SIM card to CDMA phones and networks.
IC card interoperability diagram. Japan's Nationwide Mutual Usage Service (全国相互利用サービス, Zenkoku Sōgo Riyō Sābisu) is a system that allows for reciprocal use and interoperability between the country's ten most common transportation IC cards – contactless smart cards used on public transport with additional e-money functionality.
There is only an indirect connection from mobile station via IMSI-catcher to the GSM network. For this reason, incoming phone calls cannot generally be patched through to the mobile station by the GSM network , although more modern versions of these devices have their own mobile patch-through solutions in order to provide this functionality.
The card security code (CSC) is a 3 or 4 digits number printed on a credit or debit card, used as a security feature for card-not-present (CNP) payment card transactions to reduce the incidence of fraud. The Card Security Code (CSC) is to be given to the merchant by the cardholder to complete a card-not-present transaction.
A Secure Access Module (SAM), also known as a Secure Application Module, is a piece of cryptographic hardware typically used by smart card card readers to perform mutual key authentication. [ 1 ] [ 2 ] [ 3 ] SAMs can be used to manage access in a variety of contexts, such as public transport fare collection and point of sale devices.